Ventilating device



y 1939- R. T. CORNELIUS 2,164,608

VENTILATING DEVICE Filed Aug. 26, 1937 2 Sheets-Sheet 1 12 Fig. 1

Richard T. Cornelius Patented July 4, 1939 UNITED STATES PATENT OFFICE Application August 26,

7 Claims.

My invention relates to ventilating devices and has for an object to provide a device by means of which a room or portion of a building may be rapidly and effectively ventilated.

Another object of the invention resides in providing a ventilating device by means of which the air in a room may be rapidly and effectively discharged to the exterior and air from the exterior drawn into the room.

An object of the invention resides in providing a device which may be placed in proximity to a window and by which the air in the room may be forced out of the window and new air to take the place thereof drawn in through the same window.

A still further object of my invention resides in providing a standard having electric fans mounted thereon.

An object of the invention resides in providing supporting means whereby said fans may be arranged for adjustment to throw air in any direction.

A feature of the invention resides in providing a ventilating device utilizing two fans which may be disposed in proximity to a window and ar- 25 ranged so that one of the fans blows outwardly through the window and the other fan blows inwardly into the room in which the device is situated.

Another object of the invention resides in mounting said fans for adjustment about both horizontal axes and other axes at right angles thereto.

Other objects of the invention reside in the novel combination and arrangement of parts and in the details of construction hereinafter illustrated and/or described.

In the drawings:

Fig. 1 is an clevational view of a window illustrating an embodiment of my invention posi- 40 tioned in proximity thereto.

Fig. 2 is an elevational view of a portion of the invention proper removed from the window and with one of the guards partly broken away.

Fig. 3 is a sectional view taken on line 3-3 of 45 Fig. 2 with one of the guards completely removed.

Fig. 4 is an clevational detail view of a portion of the structure shown in Fig. 2.

5 is an elevational longitudinal sectional 50 view of the supporting structure shown in Fig. 2.

In hot weather, rooms become heated to a marked degree in the day time when the sun beats directly upon the buildings in which the rooms are situated. It frequently occurs, however, that the outside temperature quickly and materially 1937, Serial No. 161,091

decreases after sundown. However, such large quantities of heat are stored in the building structures that the air within the rooms does not reach outside temperature until many hours later. The present invention provides a ventilating device by means of which the air in rooms may be quickly brought to outside temperature and by means of which any type of ventilation within the rooms may be procured when the device is not used for this purpose.

For the purpose of illustrating my invention I have shown a conventional type of double hung window I0 which consists of a. frame II slidably supporting an upper sash I2 and a lower sash I3. In the drawings the sash I3 has been partly raised to provide an opening I4 between the Window sill I5 and the lower rail I6 of the sash through which ventilation is procured.

My invention proper comprises a supporting structure I! which consists of a standard I8, a mounting I9 carried thereby and two fans 2| and 22 adjustably supported on said mounting. These parts will now be described in detail.

The standard I8 is preferably of the telescopic type and comprises a tubular upright 23 which is attached to a base 24. Slidably mounted in this upright is another tubular upright 25 to which the mounting I 9 is attached. A collar 26 is secured to the upper end of the upright 23 and slidably receives the upright 25. This collar is threaded to receive a clamp screw 21 by means of which the upright 25 may be held in any adjusted position. By means of this construction the fans 2| and 22 may be accurately positioned with reference to the opening I4 in the window II].

The mounting I9 is best shown in Fig. 5 and is constructed as a hollow T-shaped casting having three branches 28, 29 and 3|. The lower branch 3| is threaded at 32 to screw upon corresponding threads formed on the end of the upright 25. By means of this construction the mounting is rigidly supported on the standard II.

The construction for supporting the fans ZI and 22 being identical only that used in conjunction with fan 2! will be described in detail. The branch 28 of mounting I9 is constructed with a bore 33. Rotatably mounted in this bore is a tubular shaft 34. This shaft is held from end- Wise movement by means of a screw 35 which is threaded in a boss 36 formed on said mounting. The screw 35 has a lug 31 at the end of the same which snugly fits within an annular groove 38 in the shaft 34. The lug 31 restrains endwise movement of the shaft and groove 38 permits of rotation thereof. For the purpose of holding the shaft 34 in adjusted position a thumb screw 53 is employed which is threaded in a boss 54 formed on the branch 28 of mounting I9.

The degree of rotation of shaft 34 is limited for a purpose to be presently described in the following manner. In the branch 28 of mounting I9 is formed an arcuate slot 39. In this slot is movable the head 4! of a screw 42 which is threaded into the shaft 34. The slot 39 is of such dimensions that the shaft 34 may rotate through an angle of 180 degrees.

The fans 2I and 22 may be of any conventional design and the construction thereof has not been shown in detail. Each fan, however, consists of an electric motor 43 having a case 44 and having an armature shaft 45 journaled therein. The shaft 45 carries fan blades 45 and which, when rotated in the proper direction, cause air to travel in a direction away from the motor 43.

The fan 2| is supported on the shaft 34 by means of the following construction. Issuing outwardly from the case 44 of fan 2| is a stub shaft 41 which is rigidly secured thereto. A curved bracket 48 is attached to the end of the shaft 34 and is constructed at its outer end with a bearing 49 having a bore 5! therein adapted to receive the stub shaft 41. By means of this construction the entire fan is rotatably mounted through the stub shaft 41 on the bracket 48. A thumb screw 52 is threaded in the bearing 49 and engages shaft 41 whereby the fan may be locked in adjusted position.

By means of the supporting structure shown, the fan may be arranged to throw air directly upwardly as shown in conjunction with fan 2I in Fig. 2 or horizontally as shown in conjunction with fan 22 in Fig. 2. Also the fans, while in any of the adjusted positions procured through the shafts 34, may be adjusted about the stub shafts 41 so as to throw the air angularly with reference to the axes of the shafts 34.

For the purpose of delivering current to the respective fans the upright 25, mounting I9 and shafts 34 are constructed hollow. Within the interior of the parts are electric conductors 55 and 56 which lead to the motors 43 and fans 2I and 22. These conductors are also connected to a switch 51 which is attached to the upright 25. An electric cord 58 leads from this switch and may be connected to any suitable electric outlet.

In order to prevent the air from the two fans interfering, a division plate 59 is employed which is best shown in Fig. 3. This plate is circular in form and is constructed with an irregular opening 6| along the center of the same which closely fits about the upright 25 and mounting I9. This plate, at the end of. the opening BI, is constructed with two ears 62 which are bent outwardly therefrom in opposite directions and which are secured to the upper portion of the mounting I9 by means of screws 63. The lower portion of the plate 59 is secured to the upright 25 by means of two semi-circular clips 64 which are constructed with outwardly extending ears 65. Bolts 66 pass jointly through these ears and through the adjoining portions of the plate 59 and clamp all of the parts together holding the lower-most portion of the plate rigidly attached to the standard.

If the blades 46 of the fans 2| and 22 are constructed of rubber no guards are necessary. However, the same have been shown as constructed of metal in the drawings and two guards 61 and 68 are employed which protect the blades and prevent injury to the user of the device. Inasmuch as these guards are identical in construction, only the guard 61 will be described in detail. Thus guard consists of a number of concentric rings of round wire 69, 10, H, 12 and 13. These rings are welded together at their ends and are of progressively diminishing diameters. Secured to the outermost portions of these rings are arcuate rods 14 which in conjunction with said rings form a guard having the appearance of a bird cage. The guard 61 is hingedly connected to the upper portion of the plate 59 by means of a hinge 15. The ring 69 of this guard serves as a pintle for the hinge and extends through the eye 15 of the hinge. The lowermost portion of the guard is held in position on the plate 59 by means of a finger 11 which issues outwardly from the clip 64. This finger has its end 19 turned upwardly and is constructed with a groove 19 in which the lowermost portion 8| of ring 99 is received. This portion of the ring is off set as shown in Fig. 4 to clear the upright 25. The spring in the ring 69 is sufficient to cause the guard to snap in place and to hold the portion ill of said ring within the groove 19.

The method of using my invention for the purpose of removing the air from a room and replacing the same with air from the exterior is as follows: The window sash I3 is first raised so that the opening I4 formed therein is about the same height as the diameter of the plate 59. The position of the fans with reference to the standard I1 is next adjusted by loosening the clamp screw 21. These parts are then positioned so that the plate 59 comes directly opposite the opening I4. The device is then positioned in close proximity to the window and well within the interior of the room. One of the fans is then arranged so that the air discharged from the same is discharged directly outwardly through the opening I4. In the drawings fan 22 has been so illustrated. Fan 2I is then adjusted so that the same points generally upwardly or in any direction toward the interior of the room. The two fans are then started by the switch 51 and the fans caused to rotate. Fan 22 draws air from the room and discharges the same to the exterior, fan 2I draws air from the exterior and discharges it into the room. This fan is preferably arranged so that the air delivered by the same follows along one of the adjoining walls of the room. This causes the air to pass along the other walls to the opposite portion of the room and to return along a different course back to the fan 22 which discharges the same to the exterior.

I have made numerous experiments in the ventilation of rooms and I found that the air leaving a fan has a decided velocity and a determined direction of travel in front of the fan. However, the air entering the fan has an extremely low velocity and the same is taken both from the tips as well as from the back of the blades. For this reason a fan placed in front of a window and directed into a room would draw the air from the room and reoirculate the same in the room without drawing an appreciable amount of air from the exterior. In my invention the velocity of the air leaving the fan is caused to discharge air to the exterior. This creates a vacuum in the room and the fan directed into the room therefore receives the air entering the window as a consequence of such vacuum. This air is then circulated by the secnd fan throughout the room and after having picked up heat from the room is discharged through the window by the other fan. In this manner the air in the room is rapidly exchanged with exterior air and the room quickly and efficiently cooled. I have found that, with my invention, the rooms that have been shut up during the day time can be cooled at night in a very few minutes. By directing the fan within the interior of the room up against the ceiling the entire volume of air within the room is changed. In such case the air drops down from the ceiling in a gradual manner so that extremely low velocity of air about the room results. Thus the room can be ventilated without discomfort to the occupants and at the same time ventilation rapidly procured.

While I have described my invention as adapted for removing fresh air from the exterior it can be readily comprehended that air from any source may be used, such as a cool basement or the like.

The advantages of my invention are manifest.

An extremely simple and practical construction is provided by means of which rooms may be quickly and effectively ventilated.

With my invention the fans can be disposed at a window and the air within the room expelled through the window and fresh air taken in, in place of the same. If the device is desired for merely circulating air in the room the fans can be raised on the adjustable standard and positioned at any desired elevation. Also the fans can be arranged at different angles to procure any desired direction of circulation. The fans are readily accessible by opening the guards and are completely housed when in use so as to prevent any danger to the user.

Changes in the specific form of my invention, as herein disclosed, may be made within the scope of what is claimed without departing from the spirit of my invention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. A ventilating device comprising a standard, a plate secured to said standard at the uppermost end thereof, two fans carried by said standard, said fans being disposed on opopsite sides of said plate and means for adjustably supporting said fans with reference to said plate.

2. A ventilating device comprising a support, a plate carried by said support, two fans carried by said support said fans being disposed on opposite sides of said plate, and means for adjustably supporting one of said fans with reference to said plate.

3. A ventilating device comprising a support, a plate carried by said support, and two fans carried by said support said fans being disposed on opposite sides of said plate and being adapted to impell the flow of air along spaced parallel lines and in opposite directions.

4. A ventilating device comprising a support, a plate carried by said support, two fans carried by said support said fans being disposed on opposite sides of said plate, and means adjustably supporting said fans in a manner to cause the impelling of the flow of air in various directions in two spaced planes parallel with said plate.

5. A ventilating device comprising a support, two fans carried by said support and spaced from one another, said fans being disposed in a manner to impell the flow of air along spaced parallel lines and in opposite directions, and flow obstruct ing means between the fans for preventing interference between the currents of air created by said fans.

6. A ventilating device comprising a support, two fans carried by said support and spaced from one another, means for adjustably supporting said fans in a manner to permit of the impelling of the flow of air along lines disposed in spaced parallel planes and flow obstructing means between said planes for preventing interference between the currents of air created by said fans.

7. A fan assembly for use in exhausting and replenishing air in a chamber having an opening, said assembly comprising a pair of fans positioned in front of said opening and adapted to propel air in a direction parallel with the axes thereof, one of said fans being arranged to direct air outwardly from the chamber through the opening and the other being adapted to direct air inwardly into the chamber from the opening, said fans being arranged substantially at the same elevation and adjacent one another and a vertically disposed plate positioned between the fans.

RICHARD T. CORNELIUS. 

